snakekeylogger | 4d4be5a0fb152cb0f795f6ce36b1b3e4e69234681e36c41f3760858b4d38aa31

Analysis

max time kernel
176s
max time network
188s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
25/11/2022, 16:51

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General

Target
Bank Swift.exe
Size 830KB
Sample221125-vcs6dsbd97
SHA256 4d4be5a0fb152cb0f795f6ce36b1b3e4e69234681e36c41f3760858b4d38aa31
MD5 aacbef36fa202e5eb1512c99022ef31c
SHA1 97a12e69a35a037f34bbd4b4d779326bdb99ac7e
SHA512 5648dbe1a6c3f6aef53b1c14ba50b3837c2671a00934a0c3049d31711b6e61f972b2d7b1b3531ea6db671e0a22ec208759e1aa0547ce5cf4e906a201756dc84a
SSDEEP 24576:Cw/HDtU376CVtv1ekon6imVSE/HHkFg/IyXtrpc:o3tv1jftfkoXVp
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

snakekeylogger keylogger stealer

Malware Config

Extracted

Family

snakekeylogger

https://api.telegram.org/bot1644755040:AAGRTnph6BdO8-t1bJaOyVu9aeuJErmisqs/sendMessage?chat_id=1637651323

Signatures

Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
stealer keylogger snakekeylogger

Snake Keylogger payload 1 IoCs

resource	yara_rule
behavioral2/memory/2448-140-0x0000000000400000-0x0000000000426000-memory.dmp	family_snakekeylogger

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	Bank Swift.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
58	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2528 set thread context of 2448	2528	Bank Swift.exe	89

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
4396	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2528	Bank Swift.exe
2448	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2528	Bank Swift.exe
Token: SeDebugPrivilege	2448	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 4396	2528	Bank Swift.exe	84
PID 2528 wrote to memory of 4396	2528	Bank Swift.exe	84
PID 2528 wrote to memory of 4396	2528	Bank Swift.exe	84
PID 2528 wrote to memory of 2448	2528	Bank Swift.exe	89
PID 2528 wrote to memory of 2448	2528	Bank Swift.exe	89
PID 2528 wrote to memory of 2448	2528	Bank Swift.exe	89
PID 2528 wrote to memory of 2448	2528	Bank Swift.exe	89
PID 2528 wrote to memory of 2448	2528	Bank Swift.exe	89
PID 2528 wrote to memory of 2448	2528	Bank Swift.exe	89
PID 2528 wrote to memory of 2448	2528	Bank Swift.exe	89
PID 2528 wrote to memory of 2448	2528	Bank Swift.exe	89

C:\Users\Admin\AppData\Local\Temp\Bank Swift.exe
"C:\Users\Admin\AppData\Local\Temp\Bank Swift.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rUVcgRH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA24B.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4396
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2448

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

tmpA24B.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpA24B.tmp
Size 1KB
SHA256 3be4bc4cee79a125fccb09d17b65527925a737a779cba5058c3cefa2f6cc3c04
MD5 aa5241e203f29cca7f67aae13c1d025d
SHA1 320fd4a664643b53ff37fda67ba60d6c366cc75b
SHA512 f1376753a6dc64d8452df6e9d178b9f7c52e8e303e69e67f8720fb06178ada74bdbda80d2cd9925eb8a66dc730e3dc135e0b1286efebd092dd126fc8e257fc62
MD5 SHA1 SHA512

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memory/2448-140-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/2528-132-0x0000000000F10000-0x0000000000FE4000-memory.dmp

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memory/2528-133-0x0000000005E90000-0x0000000006434000-memory.dmp

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memory/2528-134-0x0000000005980000-0x0000000005A12000-memory.dmp

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memory/2528-135-0x0000000005B30000-0x0000000005BCC000-memory.dmp

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memory/2528-136-0x0000000005AB0000-0x0000000005ABA000-memory.dmp

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